publication . Article . 2007

slow cortical potentials plasticity operant control and behavioral effects

Niels Birbaumer;
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  • Published: 11 Mar 2007 Journal: The Neuroscientist, volume 5, pages 74-78 (issn: 1073-8584, eissn: 1089-4098, Copyright policy)
  • Publisher: SAGE Publications
Abstract
Slow cortical potentials are negative or positive polarizations of the electroencephalo gram (EEG) or magnetic field changes in the magnetoencephalogram (MEG) that last from 300 ms to several seconds. They originate in depolarizations of the apical dendritic tree in the upper cortical layers that are caused by synchronous firing, mainly from thal amocortical afferents. Functionally they constitute a threshold regulation mechanism for local excitatory mobilization (negative slow potentials) or inhibition (positive slow poten tials) of cortical networks. Humans can learn to voluntarily regulate these potentials after operant training using immediate feedback and p...
Subjects
free text keywords: Negativity effect, Reinforcement, Effects of sleep deprivation on cognitive performance, Excitatory postsynaptic potential, Operant conditioning, Seizure threshold, Electroencephalography, medicine.diagnostic_test, medicine, Plasticity, Neuroscience, Biology
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